Addition energies and quasiparticle gap of CdSe nanocrystals

被引：35

作者：

Franceschetti, A ^{[1
]}

Zunger, A ^{[1
]}

机构：

[1] Natl Renewable Energy Lab, Golden, CO 80401 USA

来源：

APPLIED PHYSICS LETTERS | 2000年 / 76卷 / 13期

关键词：

D O I：

10.1063/1.126150

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Using atomistic pseudopotential wave functions we calculate the quasiparticle gap, the optical gap and the electron and hole addition energies of CdSe nanocrystals. We find that the quasiparticle gap and the addition energies depend strongly on the dielectric constant of the surrounding material, while the optical gap is rather insensitive to the environment. We provide scaling lows for these quantities as a function of the quantum dot size, and compare our results with recent scanning tunneling spectroscopy experiments. (C) 2000 American Institute of Physics. [S0003-6951(00)02413-X].

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页码：1731 / 1733

页数：3

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